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Overview

eigi.ai integrates with leading AI providers to deliver the best possible experience for your voice agents. Mix and match providers to create the perfect combination for your use case.
All provider configurations are managed through the no-code dashboard—simply select your preferred options and deploy.

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Language Models (LLM)

Power your agent’s intelligence with industry-leading language models:

OpenAI

GPT-4o, GPT-4o Mini Industry-leading models with exceptional reasoning, instruction following, and conversation capabilities.

Anthropic

Claude 3.5 Sonnet, Claude 3 Opus Known for nuanced understanding, safety, and handling complex instructions with precision.

Google

Gemini 2.0, Gemini 1.5 Pro Multimodal capabilities with strong performance across diverse conversation types.

Groq

LLaMA 3, Mixtral Ultra-fast inference for latency-critical applications requiring quick responses.

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Model Selection Guide

Use CaseRecommended ModelWhy
Complex SupportGPT-4o, Claude 3.5 SonnetSuperior reasoning for troubleshooting
High VolumeGPT-4o Mini, GroqBalance of speed and cost efficiency
Sensitive TopicsClaude 3.5 SonnetNuanced, careful responses
Fast ResponsesGroq (LLaMA 3)Lowest latency for real-time feel

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Voice Synthesis (TTS)

Transform your agent’s responses into natural, expressive speech:

ElevenLabs

Premium Voice Quality Ultra-realistic voices with emotional range, natural pacing, and voice cloning capabilities. - 30+ languages - Custom voice cloning - Expressive speech styles

Cartesia

Low-Latency Synthesis Optimized for real-time conversations with minimal delay and natural sound. - Sub-100ms latency - Streaming synthesis - Multiple voice options

Sarvam

Indian Languages Specialized support for Indian languages with authentic accents and regional variations. - Hindi, Tamil, Telugu, and more - Native speaker quality - Regional dialect support

OpenAI

Integrated Solution Reliable voice synthesis integrated with OpenAI’s ecosystem. - Consistent quality - Multiple voice personas - Easy configuration

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Voice Provider Comparison

ProviderBest ForLatencyVoice Cloning
ElevenLabsPremium quality, emotional expressionMedium✅ Yes
CartesiaReal-time, low latency conversationsLow❌ No
SarvamIndian language supportMedium❌ No
OpenAISimple, reliable deploymentMedium❌ No

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Speech Recognition (STT)

Convert user speech to text with high accuracy:

Deepgram

Industry-Leading Accuracy Real-time speech recognition with exceptional accuracy across accents and environments. - Nova-2 model for best accuracy - Real-time streaming - Multi-language support - Background noise handling

Azure Speech

Enterprise Grade Microsoft’s speech recognition with enterprise features and compliance. - 100+ languages - Custom speech models - Enterprise security

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STT Features

FeatureDeepgramAzure Speech
Real-time Streaming✅✅
Noise Cancellation✅ Advanced✅
Custom Vocabulary✅✅
Speaker Diarization✅✅
Punctuation✅ Auto✅ Auto

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Video Avatars

Create visual representations for immersive video conversations:

HeyGen

Professional Avatars High-quality digital humans for professional and corporate use cases. - 100+ stock avatars - Custom avatar creation - Professional appearance - Multiple languages

Tavus

Personalized Video Create personalized video experiences with AI-generated presenters. - Custom avatar training - Brand consistency - Scalable video generation

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Avatar Provider Comparison

ProviderStock AvatarsCustom AvatarsBest For
HeyGen100+✅ YesProfessional, corporate
TavusLimited✅ YesPersonalized, branded

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Telephony

Connect your agents to phone networks:

Plivo

Global Coverage Enterprise-grade telephony with global phone number availability. - 190+ countries - Inbound & outbound - SIP trunking

Twilio

Developer Friendly Flexible telephony platform with extensive API capabilities. - Programmable voice - Global reach - Carrier network

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Choosing the Right Stack

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For Customer Support

LLM: GPT-4o or Claude 3.5 Sonnet (complex reasoning)
TTS: ElevenLabs (empathetic, natural voice)
STT: Deepgram Nova-2 (accurate transcription)

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For High-Volume Sales

LLM: GPT-4o Mini or Groq (cost-effective, fast)
TTS: Cartesia (low latency)
STT: Deepgram (reliable streaming)

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For Indian Markets

LLM: GPT-4o (multilingual capability)
TTS: Sarvam (native Indian language voices)
STT: Deepgram (Hindi/regional language support)

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For Video Experiences

LLM: Claude 3.5 Sonnet (nuanced conversation)
TTS: ElevenLabs (expressive synthesis)
STT: Deepgram Nova-2 (accurate capture)
Avatar: HeyGen or Tavus (professional appearance)

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Provider Availability

All providers are available through the eigi.ai dashboard. Simply configure your agent and select your preferred providers—no API keys or technical setup required.
Provider availability and features may vary based on your plan. Contact support for enterprise options and custom provider integrations.

Need a Different Provider?

We’re constantly adding new providers. Let us know what you need!